Optimisation strategies for intramedullary nailing parameters in subtrochanteric fractures of the femur: a multimodal assessment based on finite element and biomechanical experiments.

The fitting results show that the coefficient of determination R 2 of the obtained linear model is 0.9936 (adjusted R 2 = 0.9928), which is close to the theoretical maximum of 1, indicating a highly significant linear correlation between displacement and stress ( P < 0.001).

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